Filter-cell.



G. M. KNEUPER.

Patented Sept. 14, 1909.

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. INVENTOH 8 E 3 w W GEORGE H. KNEUBEB, OF NEW YORK, N. Y.

mun-cats.

. Application as June 11,1907. Serial No. 378,340.

To all whom it may concern:-

' "Be it known that I, GnoiiGnM. KNnUrnn,

a citizen of the United States, and resident of the borou hv of Brooklyn, county of Kings, c'ityanil- State of New York, have invented certain new and useful Improvements in lsiltenCells, of which the following is a specification.

My inventionjrelates to filtercells and has for 1ts object to provide a cell which is serv iceable and simple in construction which can be easily and effectively cleaned-and which is capable of accommodating. varying" thicki nesses of filtering material.

Other objects .of'my invention will appear from the annexed description and the features of novelty will be pointed out in the appended claims. M I

Reference is to be had'to the accompanying drawing in whichi j V Figure 1 is an elevation of my improved filter cell; Fig.2 is a; central'sectional view thereof ,1 Fig. 3 is ahorizontal sectionin'the line 3-3] of Fig; 1 Fig.4 is a detail perspective view of one of the clamping rings; Fi 5 is a detail sectional view of the wire jacket on an enlarged scale.

A represents the core "which is composed of a. number of spaced bars secured together by rin s B, around which the filtering'material is wrapped, which filtering material extends over the ends of the core A to the inside thereof as clearly shown in Fig. 2.

D is a foraminated jacket which may be composed of a sheet of wire netting or other suitable material, the longitudinal edges of which are loose or unconnected and each provided with a series of hooks E. The edge portions are overlapped as shown in Fig. 5, one series of hooks being nearer the edge than the other; A lace F, preferably of an elastic material, is adapted to be laced through said hooks E to secure said adjacent ends of the jacket, the jacket thus serving to maintain the filtering material C in position on the core A. The ends of the core A take over cup-shaped end members G with the inwardly-folded ends of the filtering material between the said members G and the ends of the core A. Expansible clamping rings H which may be in engagement with the end members G, clam the ends of the filtering material against t e bars of the core A just inside of the two end rings B. The end members G are mounted on a pipe I, having perforations I. These members G v K Specification of Letters Patent. Patented'i l pt'. 1909.

are also provided with flanges: G which serve to clamp the filtering material against the ends ofthev core A. The one end of thepipelfis closedas' by-a nut- J and the other end is screw-threaded at J for connection with the supply of liquid which is to be filtered'." The nut. J erve toforce the-two end members Gr toward each other and against the filtering aterial, it being understood that the upper member G is immovably secured to the pipe I.

In operation the liquid to be filtered enters the pipe Iat the end J and flows through the perforationsl' to the interior of the filtering cell from which .it passes betweenthe bars of thecor'e A outthrough the filtering material C and through the acket D to the receiving chamber in which the cell is arranged, or the liquid may simply flowdown the outer surface of the cell. As the filterin material becomes saturated withthe liqui it has a tendency to'expand, which expansion if not allowed for .would tend to compress the fibers of the filterin material and thus render the filtering defective. By having the ends of the jacket D laced together as shown,-this jacket gives somewhat as the filtering material expands and thus prevents an undue compression of the fibers of the filtering material. The wire jacket laced as described; also allows a limited space for excursional motion of the filtering material which motion is. of great service when the cell is to be cleaned by a pulsatin reversed flow of cleansing medium. The a We mentioned space is produced by the pressure of the liquld as it passes through the cell, this pressure exercislng a strain on and consequently stretching the lace, increases the circumference of the jacket. The laced jacket also permits of the use of filtering material of varyin degrees of thickness. The cell is also capa 1e of being cleaned by rolling back and forth on a level surface under pressure of the hands in which case the jacket has a tendency to cause a frictional motion between the fibers. which compose the filtering material, thereby causing every trace of impurities 'to be removed and insuring a very thorough cleansing of the cell. The jacket being practically a split cylinder can always be made to fit tightly around the covered core by simply relacing it from time to time so that the cells remain equal to new until all the filtering material has been brushed away by cleansing.

By making the corevA of spaced bars the liquld passes freely to the filtering material and the danger of the cell becoming clogged is done away with;

Various modifications may beinade withv out departing from the" spirit of my invention as defined in the claims.

' Iclaim: z

1.- A filtering cellcomprisin a cylindrical core composed of longitudinal ars and rin connecting them at mtervals, a layer of tering material surrounding said core and having its ends folded into the core,' expansible clamping rings for holding said folded ends against the inner surface of the core, and a laced foraminated jacket on the outside of said filtering material.

other, and means for holding said jacket on the filtering material. a

4. A filtering cellcomprising an apertured core, a layer of filtermg material surroundin said core, a foraminated 'acket surroun ing said filterin material an having unconnected longitu inal edges so that sald edges may movetoward and from each other, hooks ad'acent to said edges, and a lace extending t rou h said hooks.-

-5. A filtering cel comprising an apertured core, a layer of filtering material surroundin said core, a foraminated 'acket surroun ing said filterin material an havin unconnected longitufiin said edges may move toward and from each other, and lacing to hold the jacket on the filtering materia 6. A filtering n edges-so'that cell' comprising anf apertured core, a layer of filtering material snrronndin surroun ing saidfilte'r'in ing unconnected longitud I, said'edges may move-toward and from each material an havother, and elastic lacing to hold the jacket on the filtering materia j Y 7."A- filtering cell comprising an apertured core,.a layer of filtering material surrounding said core; a foraminated jacket havin overlapping unconnected longitudina'l e ges, a series of fastening devices alo each'of said ed s, and lacingengaged-Iwit said fastening evices. I

8, A filterin cell com 'rising' a core composed of space longitu lnalbars and ri connecting them at intervals, a layer of" tering material surroundin said core and having its ends folded into t ecore, and ex 'pansible clamping rings for holding said I folded ends against the inner surface of the core, said clamping rings being located be? tween the end rings of the core.

In testimony "whereof I have hereunto signed my name in the presence of two subscribing witnesses. j

- GEORGE M. KNEUPER.

Witnesses:-

JOHN A. Knmmnnncx, Eocene Eam.

inal edges so that said core, afforaminated 'acket 

